VBscript is part of office? Was it traced back to Open Source?
Apparently, VBscropt os part of office. Presumably, that would be the Internet Information Server part of MS Office. Perhaps the part that is open source? Like the "remote code flaw in Windows Defender that was traced back to an open-source archiving tool"?
Or perhaps VBscript is part of Windows, and the remote code flaw in Windows Defender was traced back to a MS fork of an archiving tool.